import { v4 as uuidv4 } from "uuid";
//生成一个随机的字符串,且每次执行不能发生变化,游客身份持久存储
export const getUUID = () => {
    //获取本地有没有uuid
    let uuid_token = localStorage.getItem('UUIDTOKEN')
    //如果没有则重新生成
    if (!uuid_token) {
        uuid_token = uuidv4()
        localStorage.setItem('UUIDTOKEN', uuid_token)
    }
    return uuid_token
}